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List:       linux-kernel
Subject:    Re: [tip:x86/asm] x86, bitops: Change bitops to be native operand size
From:       Rob Landley <rob () landley ! net>
Date:       2013-11-30 23:16:22
Message-ID: 1385853382.1974.297 () driftwood
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On 11/12/2013 02:52:57 AM, Geert Uytterhoeven wrote:
> On Tue, Nov 12, 2013 at 5:08 AM, Joe Perches <joe@perches.com> wrote:
> > On Tue, 2013-11-12 at 12:15 +0900, Linus Torvalds wrote:
> >> Talking about "ideal implementation" is also singularly stupid.
> >
> > I just want the various arch implementations to match
> > the docs.  I know that's stupid.
> >
> > Maybe if you really don't want to discuss things, you
> > should fix the documentation.
> 
> E.g. by adding a paragraph that the actual allowed range of indices  
> may be
> a subset of "unsigned long" on some architectures.
> Or if we know that everyone supports at least 31 resp. 63 bits, that  
> it may
> be limited to 31 resp. 63 unsigned bits, which is the positive range  
> subset of
> "long".

If this ever turns into an actual patch to this file, could you cc: me  
on it so I can marshal it upstream? (Not enough domain expertise for me  
to produce it myself...)

Thanks,

Rob--
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